From £2,240
Been in the trade for over 30 yrs and take pride in my work. Fully insured and references both trade and private available
From £2,176
O NEILL CONSTRUCTION LTD is an established extension buildering business in PO14. We come highly recommended and provide competitive quotes for you...
From £1,984
NICK SMITH BUILDERS is an established extension buildering business in PO14. We come highly recommended and provide competitive quotes for your wor...
From £2,384
Stubbington Roofing Ltd. is an established extension buildering business in PO14. We come highly recommended and provide competitive quotes for you...
From £2,200
We are experts in cavity wall insulation, cavity wall insulation removal, loft insulation, loft boarding, room in roof insulation, chemical damp pr...
From £2,128
Relax... you have found a reliable extension builder in PO14. MA Builders is a friendly and reliable company based in PO14 who consider no job as t...
From £2,288
Relax... you have found a reliable extension builder in PO14. BRIAN NEWLYN BUILDERS is a friendly and reliable company based in PO14 who consider n...
From £2,184
Trusted and professional extension builder in PO14. Experienced in all extension buildering work and keeping within budget and on quote. DAVE HARRI...
From £2,392
Trusted and professional extension builder in PO14. Experienced in all extension buildering work and keeping within budget and on quote. A W PAVING...
From £2,136
Trusted and professional extension builder in PO14. Experienced in all extension buildering work and keeping within budget and on quote. J.Roberts ...

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in PO14 it ranges from £1,984 (NICK SMITH BUILDERS based in PO15) to £2,392 (A W PAVING LTD based in SO31).
Comparing extension builders estimates for fitting an RSJ gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
Get rates and quotes to install an RSJ in PO14 by posting a job with HaMuch and we will send it to extension builders in PO14.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Install An RSJ near Fareham | £35 | £250 |
| Install An RSJ near Lee-on-the-Solent | £35 | £249 |
| Install An RSJ near Locks Heath | £33 | £240 |
| Install An RSJ near Gosport | £35 | £246 |
| Install An RSJ near Portsmouth | £36 | £250 |
| Install An RSJ near Hedge End | £34 | £244 |
| Install An RSJ near Waterlooville | £36 | £250 |
| Install An RSJ near Southampton | £34 | £243 |
| Install An RSJ near Horndean | £35 | £253 |
| Install An RSJ near Havant & Waterloo | £35 | £248 |
Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.

Underpin a building - £17,511

Two storey extension - £88,017

Build a timber frame extension - £26,011

Build a swimming pool - £81,011

Single storey extension - £55,224

Side return extension - £41,626

Install an RSJ - £2,211

Outbuilding - £10,011

Build a Mansard loft conversion - £52,011

Loft conversion - £33,855

Build a kitchen extension - £42,011

Hip to gable loft conversion - £42,011

Granny annexe - £87,011

Garden office - £10,011

Convert a Garage - £16,011

Garage - £18,511

Build a flat roof extension - £22,011

Build a dormer loft conversion - £42,011

Concrete foundations - £6,261

Convert a bungalow loft - £29,011

Convert a basement - £37,626